Drawing elongated stock, such as copper tubing

Details Drawing elongated stock, such as copper tubing Drawing elongated stock, such as copper tubing

1975-03-10

1976-01-27

Larson, Lowell A.

Metal deforming

By pulling workpiece through closed periphery die

Utilizing specified work moving means

B21C 102

Patent

active

039344495

ABSTRACT:
Copper tubing is drawn through a die by means of a rotating drum to which the front end of the tube is fastened and may remain fastened as the drawn tubing is coiled on the drum, or the front is released, so that frictional engagement of multiple coils on the drum provide for pulling. An annulus pushes the coils down, but is retracted or remains ineffective as long as the front end of the tube is fastened.

REFERENCES:
patent: 3147934 (1964-09-01), Godderidge
patent: 3470723 (1969-10-01), Remner
patent: 3747869 (1973-07-01), Meyer
patent: 3827274 (1974-08-01), Schuetz

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